擅长:python、mysql、java
<p>使用带有<code>frozenset</code>键的字典:</p>
<pre><code>params_dict = {frozenset(('any',)): 'nofilter',
frozenset(('1', '2')): 'filter both',
frozenset(('any', '1')): 'filter half',
frozenset(('any', '2')): 'filter half',
....
}
params_descr = params_dict.get(frozenset(sys.argv[1:3]))
if params_descr is not None:
print(params_descr)
</code></pre>